GOoAT的博客

2019-12-5 CSP认证-魔数AC代码考点：思维+BFS+线段树C++代码如下：// An highlighted block// Powered by Qiping Yan#include<cstdio>#include<unordered_map>#include<queue>using namespace std;typedef unsigned long long uLL;const int N = 1000000 + 10;cons

Kefa and CompanyKefa wants to celebrate his first big salary by going to restaurant. However, he needs company.Kefa has n friends, each friend will agree to go to the restaurant if Kefa asks. Each ...

Aizu - 1379 平行线问题|| Parallel LinesDiscription平面上有 n (偶数） 个不同的点。如果将它们两两配对，则可以组成 \frac{n}{2}